QID 730621

Date Published: 2023-02-21

QID 730621: Microsoft Exchange Server Multiple Vulnerabilities (ProxyNotShell) (Unauthenticated Check)

Microsoft Exchange Server 2013, 2016, and 2019 are affected by two zero-day vulnerabilities. The first vulnerability, identified as CVE-2022-41040, is a Server-Side Request Forgery (SSRF) vulnerability, while the second, identified as CVE-2022-41082, allows remote code execution (RCE) when PowerShell is accessible to the attacker.

QID Detection Logic (Unauthenticated):
This QID checks for vulnerable versions of MS Exchange Server by sending a GET request to /owa endpoint.

Successful exploitation of the vulnerability may allow remote code execution.

CVSS V3 rated as Critical - 8.8 severity.

CVSS V2 rated as Critical - 10 severity.

Solution

There are no patches yet, however, Microsoft has advised users to apply temporary mitigations. For more information please refer to Microsoft Security Advisory

Vendor References

Microsoft Security Advisory - msrc-blog.microsoft.com/2022/09/29/customer-guidance-for-reported-zero-day-vulnerabilities-in-microsoft-exchange-server/

CVEs related to QID 730621

CVE-2022-41040 | CVE-2022-41082 |

Software Advisories

Advisory ID	Software	Component	Link

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